But then what would barry do when he's finished reading them all? And how would he put his inimitable stamp on those which trigger random chemical reactions in his brain that must be responded to?
Most of the time I wish I had just clicked next instead of reading the comments, but occasionally it's actually worth it, and I'd probably even read them even if I was never "rewarded" for it!
You can throw a rock at any angle to the horizontal and it always follows a parabola (if, like all good physicists, you ignore air resistance) - they can go up as well as down. A vertical drop is a special case of a parabola.